TM 10-570 The Internal Combustion Engine, 1941-02-04 THE INTERNAL COMBUSTION ENGINE Prepared under direction of The Quartermaster General Paragraph Section I. Engine terminology. Definitions 1 II. Principles of operation. General 2 Work 3 Torque 4 Power 5 Fundamental principles 6 Four stroke Otto cycle 7 Two stroke Otto cycle 8 Diesel cycle 9 Compression ratios 10 Supercharging 11 III. Types of engines. General 12 Classification according to valve arrangement 13 Classification according to cylinder arrangement with respect to crankshaft 14 Classification by method of cooling 15 IV. Multiple-cylinder engines. Power impulses 16 V. Engine parts and their coordinated functions. General 17 Crankshaft 18 Cylinders 19 Crankcase 20 Pistons 21 Piston rings 22 Connecting rods 23 Bearings 24 Valve operating mechanisms 25 Intake and exhaust ports 26 Valve timing 27 Firing order 28 Section VI. Engine lubrication. Paragraph General 29 Engine lubricants 30 Selection of oil 31 Operating characteristics of oil 32 Crankcase oil changes 33 Lubricating systems 34 Oil pumps 35 Oil gages 36 Oil strainers 37 Oil cleaners or filters 38 Crankcase ventilators 39 Oil temperature regulators 40 VII. Cooling the engine. Need of cooling 41 Air cooling 42 Water cooling 43 Thermosyphon and forced cooling 44 Cooling various parts of engine 45 Preparing water cooling system for cold weather 46 Draining 47 Antifreeze solutions 48 Page Appendix. Bibliography 103

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Prepared under direction of the Quartermaster General

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